Liquid purification or separation – With means to add treating material – Directly applied to separator
Patent
1980-02-29
1981-09-22
Spitzer, Robert H.
Liquid purification or separation
With means to add treating material
Directly applied to separator
209169, 2102212, 261121R, B03D 100
Patent
active
042908868
ABSTRACT:
A flotator for use in benefication, coal dressing, wet refining and so forth, incorporating a surface flotation technic. The flotator has a funnel-shaped liquid cell having a bottom of an area smaller than that of the top opening. A bubbling device is constituted by an upper sleeve partly immersed in the liquid contained by the cell, a lower sleeve disposed coaxially with the upper sleeve and fully immersed in the liquid. The upper end of the lower sleeve is spaced by a predetermined distance from the lower end of the upper sleeve to form therebetween a spaced region located at a small depth from the liquid surface. The bubbling device further has a rotary blade unit constituted by upper and lower blades separated by a flat partition plate. The rotary blade unit is adapted to rotate around the common axis of the upper and lower sleeves, and has a thickness or axial height substantially equal to the aforementioned predetermined distance in the spaced region, and is located such that the flat partition plate is located at the heightwise mid point of the spaced region. The flotator further has a liquid surface stabilizer constituted by a frusto-conical member disposed around the bubbling device and adapted to deflect the liquid downwardly. Further, provided are a feeding passage having a feed gate opening in the bottom area of the cell and a discharging passage having a discharge gate spaced from both of the feed gate and the lower edge of the liquid surface stabilizer so as to avoid the "short-circuiting" of the liquid.
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Nagata Seisakusho Co., Ltd.
Spitzer Robert H.
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